E=12 volts It=3 amperes the RT is what?
To calculate the total resistance (RT), you need to use Ohm's Law, which states that resistance (R) is equal to the voltage (E) divided by the current (I).
Step 1: Recall the formula for Ohm's Law: R = E/I
Step 2: Substitute the given values into the formula. In this case, E = 12 volts and I = 3 amperes.
R = 12 volts / 3 amperes
Step 3: Perform the calculation:
R = 4 ohms
Therefore, the total resistance (RT) is 4 ohms.